Enterprise AI Architect for Hybrid & Cloud Platforms

Keystone Solutions; Brussel; Hybrid; EUR 90,000 - 130,000; Full time

Job summary

Keystone Solutions seeks an AI Architect for a client-site consultancy in Brussels. You will define the target architecture for generative AI, ML and agentic AI, and oversee integration patterns and data flows ensuring security and privacy by design.

You will guide delivery teams through architectural choices, establish reference architectures for on-prem, cloud, and hybrid deployments, and translate evolving tech into concrete client decisions.

Qualifications

• Extensive solution/IT architecture experience in enterprise environments.
• Experience with APIs, event and integration patterns.
• Understanding of LLM and AI platform architectures, retrieval, model serving, agents, evaluation, observability.
• Translate regulations and security requirements into architectural principles and guardrails.
• Experience with architectural decision records, reference architectures, non-functional requirements, lifecycle management.
• Knowledge of public sector, G-Cloud or OISZ context is a plus.

Responsibilities

• Develop and maintain the target architecture for generative AI, ML, and agentic AI.
• Establish reference architectures and decision patterns for on-prem, cloud and hybrid deployments.
• Define frameworks for AI Gateway, Model Context Protocol, retrieval, model access, agents, identity, logging, observability, and lifecycle management.
• Guide delivery teams in architectural choices, trade-offs, and transition from PoC to production with technology architects.
• Conduct architecture reviews and highlight deviations, debt, dependencies and risks.
• Integrate privacy, least privilege, data minimization and traceability by design in collaboration with security and data teams.
• Identify and prioritize reusable platform and integration blocks with the AI Enabling Team and Internal Developer Platform.
• Translate technological evolutions into concrete impacts, options, and decisions for the client.

Skills

API architectures

Event-driven patterns

Integration patterns

LLM AI platform architectures

Security requirements translation

Architectural decision records

Tools

Architectural tooling

Cloud/on-prem/hybrid experience

Job description

Keystone Solutions seeks an AI Architect for a client-site consultancy in Brussels. You will define the target architecture for generative AI, ML and agentic AI, and oversee integration patterns and data flows ensuring security and privacy by design.

You will guide delivery teams through architectural choices, establish reference architectures for on-prem, cloud, and hybrid deployments, and translate evolving tech into concrete client decisions.